珠江三角洲地区沙丘遗址地层的划分:以咸头岭遗址为例

珠江三角洲地区的沙丘遗址,因为堆积结构比较松散而使发掘中一些露出的沙层不稳定,很容易造成不同层位遗存的混乱。但是,这些沙丘遗址的文化层是客观存在的,本来在气候十分湿润、地表植被非常茂密的环境下也是比较稳定的,而后人发掘或人工取沙挖坑是造成层位混乱的主要原因。所以,稳固在发掘中露出来的沙层,是沙丘遗址发掘的关键。只要发掘中露出的沙层稳固住了,再运用一些层位判别的方法,沙丘遗址的文化层是可以划分清楚的。从陶器的类型学研究、系列的测年数据以及与蚝岗遗址的对比来看,都可以证明咸头岭遗址所划分的地层是可信的。

Because the accumulative structure was comparatively loose, it led to some exposed sand unstable in the discovery process and easy to create the confusion of different horizon remains on the dune site of the Pearl River Delta region. But the cultural layer of dune site was an objective reality, which was relatively stable if the environment of climate was very moist and vegetation was very dense, however, future generations explored or took the sand and dug artificially was the main reason of layer confusion. So, stabilized the exposed sand layer is the key of the excavation of dune site. Only if stabilized the sand layer that exposed in the excavation, and used some layer distinguishing methods, the cultural layer of dune site can be divided clearly. By the typology study of pottery, the chronological data of series and the comparing of Hao Gang site, it can prove the layer classification of Xian Tou Ling site is credible.